A closed loop chilled water storage system

By designing a closed-loop water-based cold storage system, rapid replacement and status assessment of the filter plates were achieved, solving the problem of difficult filter plate replacement in existing technologies, improving system efficiency and cold storage efficiency, and reducing energy consumption.

CN224302222UActive Publication Date: 2026-05-29东莞市鑫洲机电空调工程有限公司

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
东莞市鑫洲机电空调工程有限公司
Filing Date
2025-06-21
Publication Date
2026-05-29

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Abstract

The utility model relates to water cold storage system technical field, concretely is a kind of closed loop water cold storage system, it includes: cold storage tank, refrigeration host, primary pump and secondary pump, the top of cold storage tank is connected with conveying assembly, the side of conveying assembly is provided with filter assembly;Filter assembly includes filter box, sealing washer, cover plate, connecting pipe, fixed plate, connecting plate, connecting hole and replacement part;Sealing washer is clamped in the top of filter box, cover plate is fixed on the upper surface of sealing washer, connecting pipe is arranged in the inside of filter box both sides, fixed plate is fixed on the outer surface of filter box both ends top, connecting plate is fixed on the outer surface of cover plate both ends, connecting hole is passed through and is arranged in the inside of fixed plate and connecting plate, replacement part is arranged in the inside of filter box.The utility model has the advantages of simple structure, reasonable in design, filter plate can be replaced alone, simple to dismount, and open filter box can judge the working condition of filter plate, and the replacement progress of filter plate is conveniently understood.
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Description

Technical Field

[0001] This utility model relates to the technical field of water-cooled storage systems, and in particular to a closed-loop water-cooled storage system. Background Technology

[0002] Water-based cooling technology is an important means of peak load regulation for electricity and is widely used in commercial buildings, industrial facilities and other fields. The system produces and stores chilled water during off-peak hours at night and releases the cooling capacity during peak hours during the day, thereby reducing electricity costs. Its core relies on a circulation system consisting of a cold storage tank, a cooling unit and a pump unit.

[0003] Existing water-cooled storage systems have a relatively complex structure, and in actual use, the filter plates are placed inside the pipes. Replacing the filter plates requires a lot of time and effort to disassemble the pipes. Furthermore, because the filter plates are placed inside the pipes, it is not possible to clearly judge the condition of the filter plates, and thus it is impossible to determine when to replace them. To address this problem, the inventors designed a closed-loop water-cooled storage system. Utility Model Content

[0004] The purpose of this utility model is to provide a closed-loop water storage cooling system, which has the advantages of simple structure, reasonable design, replaceable filter plates, simple disassembly and assembly, and the ability to judge the working status of the filter plates by opening the filter box, making it convenient to understand the replacement progress of the filter plates, thus solving the problems mentioned in the above technical background.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model is a closed-loop water-cooled storage system, including a cold storage tank, a refrigeration unit, a primary pump and a secondary pump. The top of the cold storage tank is connected to a conveying assembly, and a filter assembly is provided on one side of the conveying assembly.

[0007] The filter assembly includes a filter box, a sealing ring, a cover plate, a connecting pipe, a fixing plate, a connecting plate, a connecting hole, and a replacement part; the sealing ring is snapped onto the top of the filter box, the cover plate is fixed to the upper surface of the sealing ring, the connecting pipe is located inside both sides of the filter box, the fixing plate is fixed to the outer surface of the top of both ends of the filter box, the connecting plate is fixed to the outer surface of both ends of the cover plate, the connecting hole is opened through the inside of the fixing plate and the connecting plate, and the replacement part is located inside the filter box.

[0008] Furthermore, the replacement component includes a limiting frame, a first ceramic filter plate, a second ceramic filter plate, and a fixing tube; the limiting frame is fixed inside both sides of the filter box, the first ceramic filter plate is snapped into the inside of the limiting frame on one side, the second ceramic filter plate is snapped into the inside of the limiting frame on the other side, and the fixing tube is fixed to the outer surface of the limiting frame.

[0009] Furthermore, a magnet block is fixed inside the limiting frame, and a connecting rod is fixed on the outer surface of the magnet block that is not fixed inside the limiting frame. The connecting rod passes through and connects the limiting frame, the first ceramic filter plate, and the second ceramic filter plate.

[0010] Furthermore, the conveying assembly includes a first conveying pipe, a second conveying pipe, and a third conveying pipe; the first conveying pipe is fixed inside the top of the cold storage tank, one side of the first conveying pipe is connected to a connecting pipe, the second conveying pipe is disposed between the primary pump and the first conveying pipe, and the third conveying pipe is disposed between the primary pump and the refrigeration unit.

[0011] Furthermore, the outlet of the refrigeration unit is provided with a fourth conveying pipe, and a fifth conveying pipe is provided between the cold storage tank and the fourth conveying pipe.

[0012] Furthermore, a sixth conveying pipe is provided between the fourth conveying pipe and the secondary pump, and a seventh conveying pipe is provided at the outlet of the secondary pump.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model provides a closed-loop water storage cooling system. The detection device includes an air cleanliness detection device with a simple overall structure and reasonable design. It improves filtration accuracy through two-stage ceramic filtration (first ceramic filter plate and second ceramic filter plate), intercepts tiny particles and microorganisms, and ensures water cleanliness. With the cooperation of the magnet block and connecting rod, combined with disposable cable ties for fixation, the filter plate can be quickly replaced, reducing downtime. It is easy to disassemble and assemble, and the working status of the filter plate can be judged by opening the filter box, which is convenient for understanding the replacement progress of the filter plate. It has the advantages of strong practicality.

[0015] 2. This utility model isolates the primary circuit (refrigeration side) and the secondary circuit (user side) to prevent external pollutants from entering the system, reducing water treatment requirements. It also utilizes the density difference of cold water to achieve temperature stratification, reducing the loss of cold energy caused by the mixing of hot and cold water, and improving the cold storage efficiency by more than 20%. The primary and secondary pumps work together to adjust the cooling capacity according to the load demand, reducing water pump energy consumption. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0018] Figure 2 This is a structural diagram of the filter box of this utility model;

[0019] Figure 3 This is a cross-sectional view of the filter box of this utility model;

[0020] Figure 4 This is a structural diagram of the filter box of this utility model.

[0021] The attached diagram lists the components represented by each number as follows:

[0022] 1. Cold storage tank; 2. Refrigeration unit; 3. Secondary pump; 4. Primary pump; 5. Filter assembly; 51. Filter box; 52. Sealing ring; 53. Cover plate; 54. Connecting pipe; 55. Fixing plate; 56. Connecting plate; 57. Connecting hole; 58. Replacement part; 581. Limiting frame; 582. First ceramic filter plate; 583. Second ceramic filter plate; 584. Fixing pipe; 585. Magnet block; 586. Connecting rod; 6. Conveying assembly; 61. First conveying pipe; 62. Second conveying pipe; 63. Third conveying pipe; 64. Fourth conveying pipe; 65. Fifth conveying pipe; 66. Sixth conveying pipe; 67. Seventh conveying pipe. Detailed Implementation

[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0026] Please see Figures 1-4 As shown, this embodiment is a closed-loop water-based cooling system, including:

[0027] It includes a cold storage tank 1, a refrigeration unit 2, a primary pump 4 and a secondary pump 3. A conveying assembly 6 is connected to the top of the cold storage tank 1, and a filter assembly 5 is provided on one side of the conveying assembly 6.

[0028] The filter assembly 5 includes a filter box 51, a sealing ring 52, a cover plate 53, a connecting pipe 54, a fixing plate 55, a connecting plate 56, a connecting hole 57, and a replacement part 58. The sealing ring 52 is snapped onto the top of the filter box 51, the cover plate 53 is fixed to the upper surface of the sealing ring 52, the connecting pipe 54 is disposed inside both sides of the filter box 51, the fixing plate 55 is fixed to the outer surface of the top of both ends of the filter box 51, the connecting plate 56 is fixed to the outer surface of both ends of the cover plate 53, the connecting hole 57 is opened through the interior of the fixing plate 55 and the connecting plate 56, and the replacement part 58 is disposed inside the filter box 51.

[0029] The cold storage tank 1 is used to store cold water. It utilizes the principle of temperature stratification (cold water at the top and return water at the bottom) to efficiently store cold water. The refrigeration unit 2 operates during off-peak electricity periods, cooling the cold water and storing it in the cold storage tank 1. During peak periods, it can supply cooling to the cold storage tank 1 alone or in conjunction with the cold storage tank 1. The primary pump 4 drives the water circulation between the refrigeration unit 2 and the cold storage tank 1 (primary loop) to ensure efficient storage of cold water. The secondary pump 3 drives the water circulation between the user side (cooling terminal) and the cold storage tank 1 (secondary loop) to supply cooling on demand. The filter box 51 houses the filter plate and forms a sealed cavity. The sealing ring 52 and the cover plate 53 ensure the airtightness of the filter box 51 and prevent water leakage. The connecting pipe 54 is used to connect the first delivery pipe 61 and the filter box 51 to guide the water flow through the filter plate. The fixed plate 55, connecting plate 56 and connecting hole 57 are set up. The cover plate 53 is fixed by disposable cable ties to simplify the disassembly and assembly process.

[0030] The replacement part 58 includes a limiting frame 581, a first ceramic filter plate 582, a second ceramic filter plate 583, and a fixing tube 584; the limiting frame 581 is fixed inside both sides of the filter box 51, the first ceramic filter plate 582 is snapped into the inside of one side of the limiting frame 581, the second ceramic filter plate 583 is snapped into the inside of the other side of the limiting frame 581, and the fixing tube 584 is fixed to the outer surface of the limiting frame 581;

[0031] The first ceramic filter plate 582 and the second ceramic filter plate 583 are set to intercept particulate matter and microorganisms through ceramic micropores, thereby improving water quality. The fixing tube 584 is used to connect with the connecting rod 586, thereby fixing the first ceramic filter plate 582 and the second ceramic filter plate 583 inside the limiting frame 581.

[0032] A magnet 585 is fixed inside the limiting frame 581. A connecting rod 586 is fixed on the outer surface of the magnet 585 which is not fixed inside the limiting frame 581. The connecting rod 586 passes through and connects the limiting frame 581, the first ceramic filter plate 582, and the second ceramic filter plate 583.

[0033] The filter plate is quickly locked in place by the magnet 585 to prevent it from loosening. After the connecting rod 586 is inserted into the fixing tube 584, the magnet 585 adsorbs and forms a stable structure, simplifying the replacement process.

[0034] The conveying assembly 6 includes a first conveying pipe 61, a second conveying pipe 62, and a third conveying pipe 63; the first conveying pipe 61 is fixed inside the top of the cold storage tank 1, and one side of the first conveying pipe 61 is connected to the connecting pipe 54; the second conveying pipe 62 is disposed between the primary pump 4 and the first conveying pipe 61; and the third conveying pipe 63 is disposed between the primary pump 4 and the refrigeration unit 2.

[0035] The outlet of the refrigeration unit 2 is provided with a fourth conveying pipe 64, and a fifth conveying pipe 65 is provided between the cold storage tank 1 and the fourth conveying pipe 64.

[0036] A sixth conveying pipe 66 is provided between the fourth conveying pipe 64 and the secondary pump 3, and a seventh conveying pipe 67 is provided at the outlet of the secondary pump 3.

[0037] The first delivery pipe 61 delivers filtered cold water to the cold storage tank 1 and the primary pump 4. The second delivery pipe 62 and the third delivery pipe 63 form a primary circuit, connecting the cold storage tank 1, the primary pump 4 and the refrigeration unit 2. The fifth delivery pipe 65 and the sixth delivery pipe 66 are used to mix the cold water at the bottom of the cold storage tank 1 with the refrigeration water of the refrigeration unit 2 and then deliver it to the secondary pump 3. The seventh delivery pipe 67 is used to deliver the pressurized cold water from the secondary pump 3 to the cooling terminal. The fourth delivery pipe 64 is the main outlet of the refrigeration unit 2 and delivers cold water to the sixth delivery pipe 66.

[0038] Working principle: When the cold storage tank 1 and the refrigeration unit 2 work together for refrigeration, the liquid is delivered to the inside of the first delivery pipe 61 through the filter assembly 5 by the cold terminal. Part of the liquid inside the first delivery pipe 61 flows into the inside of the primary pump 4, and the other part of the liquid flows into the inside of the cold storage tank 1. The liquid inside the primary pump 4 flows into the inside of the refrigeration unit 2 through the third delivery pipe 63. The liquid inside the refrigeration unit 2 flows into the inside of the sixth delivery pipe 66 through the fourth delivery pipe 64. The cold water at the bottom of the cold storage tank 1 flows into the inside of the sixth delivery pipe 66 through the fifth delivery pipe 65. Subsequently, the liquid inside the sixth delivery pipe 66 flows into the inside of the secondary pump 3. Finally, the liquid in the secondary pump 3 flows into the cold terminal through the seventh delivery pipe 67.

[0039] When it is necessary to replace the first ceramic filter plate 582 and the second ceramic filter plate 583, first cut the disposable cable tie. After the fixing plate 55 and the connecting plate 56 are no longer restricted, apply an upward force to the cover plate 53 to remove the cover plate 53 from the top of the filter box 51. Then apply a pulling force to the connecting rod 586 to remove the connecting rod 586 from the inside of the fixing tube 584. Next, apply a pulling force to the first ceramic filter plate 582 or the second ceramic filter plate 583 to remove the first ceramic filter plate 582 or the second ceramic filter plate 583 from the inside of the limiting frame 581. Then insert the new first ceramic filter plate 582 or the second ceramic filter plate 583 into the inside of the limiting frame 581. Insert the connecting rod 586 into the inside of the fixing tube 584 so that the two sets of magnet blocks 585 are connected together. Then cover the top of the filter box 51 with the cover plate 53 and insert the disposable cable tie into the connecting hole 57 to connect the fixing plate 55 and the connecting plate 56 together.

[0040] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0041] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A closed-loop water-based cold storage system, comprising a cold storage tank (1), a refrigeration unit (2), a primary pump (4), and a secondary pump (3), characterized in that, The top of the cold storage tank (1) is connected to a conveying assembly (6), and a filter assembly (5) is provided on one side of the conveying assembly (6). The filter assembly (5) includes a filter box (51), a sealing ring (52), a cover plate (53), a connecting pipe (54), a fixing plate (55), a connecting plate (56), a connecting hole (57), and a replacement part (58). The sealing ring (52) is snapped onto the top of the filter box (51), the cover plate (53) is fixed to the upper surface of the sealing ring (52), the connecting pipe (54) is located inside both sides of the filter box (51), the fixing plate (55) is fixed to the outer surface of the top of both ends of the filter box (51), the connecting plate (56) is fixed to the outer surface of both ends of the cover plate (53), the connecting hole (57) is opened through the inside of the fixing plate (55) and the connecting plate (56), and the replacement part (58) is located inside the filter box (51).

2. The closed-loop water-based cooling system according to claim 1, characterized in that, The replacement part (58) includes a limiting frame (581), a first ceramic filter plate (582), a second ceramic filter plate (583), and a fixing tube (584); the limiting frame (581) is fixed inside both sides of the filter box (51), the first ceramic filter plate (582) is snapped into the inside of the limiting frame (581) on one side, the second ceramic filter plate (583) is snapped into the inside of the limiting frame (581) on the other side, and the fixing tube (584) is fixed to the outer surface of the limiting frame (581).

3. The closed-loop water-based cooling system according to claim 2, characterized in that, A magnet block (585) is fixed inside the limiting frame (581). A connecting rod (586) is fixed on the outer surface of the magnet block (585) which is not fixed inside the limiting frame (581). The connecting rod (586) passes through and connects the inside of the limiting frame (581), the first ceramic filter plate (582), and the second ceramic filter plate (583).

4. The closed-loop water-cooled storage system according to claim 1, characterized in that, The conveying assembly (6) includes a first conveying pipe (61), a second conveying pipe (62) and a third conveying pipe (63); the first conveying pipe (61) is fixed inside the top of the cold storage tank (1), one side of the first conveying pipe (61) is connected to the connecting pipe (54), the second conveying pipe (62) is arranged between the primary pump (4) and the first conveying pipe (61), and the third conveying pipe (63) is arranged between the primary pump (4) and the refrigeration unit (2).

5. A closed-loop water-based cooling system according to claim 1, characterized in that, The outlet of the refrigeration unit (2) is provided with a fourth conveying pipe (64), and a fifth conveying pipe (65) is provided between the cold storage tank (1) and the fourth conveying pipe (64).

6. A closed-loop water-based cooling system according to claim 5, characterized in that, A sixth conveying pipe (66) is provided between the fourth conveying pipe (64) and the secondary pump (3), and a seventh conveying pipe (67) is provided at the outlet of the secondary pump (3).